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前言在草地生产过程中,牧草产量受多种因素的制约,其中利用程度对植物生物量的形成就产生一定影响。所以,通过人为模拟家畜利用草场,即切除植物的绿色组织对草群的影响程度,不仅与当年及前一年降水条件有关,也与利用程度密切相关。为了探讨短花针茅草群在各种不同利用方案下,其产量和主要营养物质含量的变化,通过在草群刈割处理的第二年继续处理,测定了草群地上部产量、地下部生物量及地上部的粗蛋白质、粗纤维含量。
Foreword In the process of grassland production, pasture production is restricted by many factors, of which the degree of utilization has an impact on the formation of plant biomass. Therefore, the artificial grassland use of pastures, that is, the removal of plant green tissue on the extent of the grass group, not only with the year and the previous year precipitation conditions, but also with the degree of utilization is closely related. In order to investigate the changes of the yield and the main nutrient contents of Stipa breviflora under different utilization programs, the yield of above-ground grass, Volume and above the crude protein, crude fiber content.